# TP_SetCallback

## C Specification

  `#include <nitro/spi.h>`

      void TP_SetCallback( TPRecvCallback * callback );

## Description

This function sets the user callback function called during acquisition of the result of a touch panel request to the subprocessor.

If the argument is NULL, no user callback will be called until it is subsequently reset. (The default is NULL.)

## Arguments

`callback` | Pointer to a user callback function

## Return Values

None

## See Also

`TPRecvCallback`

## Revision History

04/16/2004 Initial version